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一、概说我国煤炭资源的勘探目前仍以钻探为主要手段。随若钻探新技术之一——绳索取芯钻井新工艺的引进以及煤炭部地质局在考察了国内外钻井冲洗技术的现状后,对钻井泥浆提出了更高的要求。作者根据我国的资源特点研制成MD—1钻
First, an overview of China’s exploration of coal resources is still the main means of drilling. With the introduction of one of the new drilling technologies - the introduction of rope coring drilling new technology and the status quo of drilling flushing technology both at home and abroad with the introduction of the new requirements of drilling mud. The author developed MD-1 drill according to the characteristics of our country’s resources